Awarding points to teams opposing a BYE team by bowling within a percentage of their average

If your league is certified and has a rule stating that a team playing a BYE
team must bowl within a percentage of the team average, then you must change
your league rule to where they bowl within a specified number of pins.

Per USBC rules, a league may only change the number of pins below the team
average. The league may not change the method to a percentage